A sudden rainstorm brings young ninja Miko face to face with Hidemasa, the man her heart instantly claims as her own. Her friend Fubuki’s quiet jealousy simmers in the background as Miko’s hopes for romance are set aside by troubling reports of ancient male and female flutes spreading chaos among women, including her own family. Convinced Hidemasa may hold vital clues, Miko enlists his help to uncover the instruments’ secret before the disturbance grows beyond control.